"Severe" accumulation conditions in stripping voltammetry: Possibilities of their use

A procedure was developed for the accumulation of metals under "severe" con ditions of stripping voltammetry at solid renewal indicator electrodes. The effect of the parameters of severe accumulation (accumulation voltage V-ac , current density, and hydrodynamic characteristics) on the deposition rate of a number of metals is studied. It is shown that the use of high V-ac va lues sharply increases the rate of deposition of electroactive metals by Tw o to three orders of magnitude. It is also demonstrated that under severe c onditions of accumulation at solid renewal electrodes, the analytical signa l remains to be reproducible and depends linearly on the metal concentratio n and its accumulation time.